CN205984512U

CN205984512U - SMD transformer

Info

Publication number: CN205984512U
Application number: CN201620780705.4U
Authority: CN
Inventors: 冯海平; 唐祖华; 唐成家; 唐宏兰
Original assignee: Shenzhen Consistent Fine Exhibition Plastic Products Co Ltd
Current assignee: Shenzhen Consistent Fine Exhibition Plastic Products Co Ltd
Priority date: 2016-07-22
Filing date: 2016-07-22
Publication date: 2017-02-22
Anticipated expiration: 2026-07-22

Abstract

The utility model discloses a SMD transformer, include the open hollow base in top, insert and establish several stitch on the wall of the relative both sides of base, the first end of stitch stretches out the top surface of lateral wall, relative second end stretches out the bottom surface of base, second end along the bottom surface is to adjacent buckle in the side of base, and the butt is in on the side. The utility model discloses in, stitch one end is buckled and the setting of butt on base side, and is difficult by compressive strain or rupture, reduces packing, the transportation requirement of transformer, the bottom surface roughness that stitch one end is buckled partly is good, and the convenient surface mounting technology of passing through welds on devices such as circuit board.

Description

SMD transformator

Technical field

This utility model is related to a kind of electronic device, more particularly, to a kind of SMD transformator.

Background technology

In electric equipment, transformator is used as buck/boost, matching impedance, security isolation etc..Getting over electronic equipment Carry out more miniaturization, SMD transformator gets more and more and applies in various electronic equipments.Generally, SMD transformator includes absolutely The shell of edge, the stitch being arranged on shell and the coil being arranged on inside the shell.In current transformator, the two ends of stitch are divided Do not stretch out shell, upward, the side of shell is laterally directly stretched out in one end for one end.Current above-mentioned transformator is in packed and transported, whole External body need to coat protective layer, it is to avoid stitch stretches out shell side one end and is crushed out of shape or fractures, thus affect transformator installing And use.

Utility model content

The technical problems to be solved in the utility model is, provides a kind of improved SMD transformator.

This utility model solves its technical problem and be employed technical scheme comprise that：A kind of SMD transformator is provided, including The pedestal of the hollow of open-top, the several stitch being plugged in described pedestal two lateral walls；The first end of described stitch is stretched Go out the top surface of described side wall, the bottom surface of described pedestal is stretched out at the second relative end；Described second end is along described bottom surface to adjacent Described pedestal side bending, and be connected on described side.

Preferably, the second end of the corresponding described stitch in the side of described pedestal is provided with the auxiliary section of indent, described stitch Second end is located in described auxiliary section.

Preferably, the end face at described stitch second end is towards the top of described pedestal.

Preferably, it is provided with, in the wall of described side, the slot running through its top surface and described base bottom surface, described stitch is contained in institute State in slot.

Preferably, described SMD transformator also includes the solenoid being arranged in described pedestal；Described solenoid It is wrapped in described stitch first end by its wire and electrically connect with described stitch.

Preferably, described SMD transformator also includes coordinating the lid in described pedestal open top.

Preferably, described lid includes cover plate, the periphery around described cover plate is connected to the side plate on described cover plate；Described Lid is coordinated by the side wall of described side plate and described pedestal and covers on described pedestal.

Preferably, the lateral surface of at least two opposing sidewalls of described pedestal is provided with the step of indent, described side plate engaging On the wall of described side and be bonded on described step.

Preferably, the side-wall outer side face of described side plate and described pedestal is respectively equipped with the first holding section and the second engaging Portion, described side plate is matched with described second holding section by described first holding section and is fastened on the wall of described side.

Preferably, in described first holding section and the second holding section, one of is recessed bayonet socket, and another is and card The fixture block of the projection that mouth matches.

Preferably, described lid is tabular cover plate, and the side wall of described pedestal is provided with to connecing that described lid direction extends Conjunction portion, and described junction is outside the first end of described stitch, described cover cap is combined on described junction surface.

The beneficial effects of the utility model：Stitch one end bends and is connected to the setting on pedestal side, is difficult by buckling Shape or fracture, reduces packaging, the movement requirement of transformator；The bottom surface flatness of stitch one end bending part is good, conveniently passes through table Face mounting technology is welded on the devices such as circuit board.

Brief description

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：

Fig. 1 is the decomposition texture schematic diagram of the SMD transformator of this utility model one embodiment；

Fig. 2 is the bottom surface structure schematic diagram of pedestal in Fig. 1；

Fig. 3 is the internal structure schematic diagram of lid in Fig. 1.

Specific embodiment

In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now comparison accompanying drawing is detailed Specific embodiment of the present utility model is described.

As shown in Figure 1, 2, the SMD transformator of this utility model one embodiment, including the pedestal of the hollow of open-top 1 and several stitch 2, several stitch 2 are plugged in pedestal 1 two lateral walls 11.Wherein, stitch 2 include relatively connecting the One end 21 and the second end 22, the top surface of first end 22 protruding side wall 11, the bottom surface 12 of pedestal 1 is stretched out at the second relative end 22；And And, the second end 22 bends along the bottom surface 12 of pedestal 1 to the side 13 of adjacent pedestal 1, and is connected on side 13 so that pin Foot 2 second end 22 will not opposite base 1 side 13 protruding, be difficult to be crushed out of shape or fracture.

Pedestal 1 is hollow structure, and the inner chamber 10 of formation can house solenoid.Divide in two relatively side walls 11 of pedestal 1 It is not provided with the slot 14 running through its top surface and pedestal 1 bottom surface 12, stitch 2 is contained in slot 14.

Specifically, several stitch 2 are divided into average two group and are plugged in respectively in side wall 11 slot 14；Every group of quantity according to It is actually needed setting, such as 8 etc..During assembling, stitch 2 can insert in slot 14 from the top of pedestal 1, the first end 21 of stitch 2 Extend perpendicularly out the top surface of side wall 11, the second end 22 bends to the side 13 of pedestal 1 after extending perpendicularly out pedestal 1 bottom surface 12, formed Arc is connected on side 13.

Stitch 2 second end 22 bending setting so that the second end 22 end face towards pedestal 1 top.Second end 22 is curved Folding portion bottom surface flatness is good, can be welded on the devices such as circuit board by surface mounting technology.Stitch 2 stretches out the first of top surface End 21 facilitates coiling.

During production, pedestal 1 can pass through integrated injection molding, is formed with several slots 14 thereon, and several stitch 2 is with the side of insertion Formula is assemblied in slot 14.

Further, the second end 22 of the corresponding stitch 2 in the side 13 of pedestal 1 is provided with the auxiliary section 131 of indent, stitch 2 Second end 22 is located in auxiliary section 131 so that the second end 22 being connected to the stitch 2 of side 13 will not raised side 13 institute Plane, the entire package of convenient transformator, stitch 2 second end 22 will not be pressed onto in transport etc. in moving process.Excellent Selection of land, the depth of auxiliary section 131 opposite flank 131 indent is equal to or more than the thickness at stitch 2 second end 22 so that the second end 22 On thickness can overall co-ordination in auxiliary section 131, will not raised side 13.

In the present embodiment, stitch 2 is flat stitch, and cross section is in the polygons such as tetragon.

Further, this SMD transformator may also include solenoid (not shown), is arranged in pedestal 1.Electromagnetic wire Circle is wrapped in the first end 21 of stitch 2 by its wire and is electrically connected with stitch 2.Winding for convenience of wire and its positioning, pin First end 21 periphery of foot 2 is provided with wire casing, and the wire of solenoid stretches out and is wrapped in wire casing.

Further, and as shown in figure 1, this SMD transformator also includes coordinating lid in pedestal 1 open top 3.The peripheral shape of the corresponding pedestal 1 of the peripheral shape of lid 3 is configured.

In the present embodiment, lid 3 includes cover plate 31, the periphery around cover plate 31 is connected to the side plate 32 on cover plate 31； Lid 3 is coordinated by the side wall 11 of side plate 32 and pedestal 1 and covers on pedestal 1.Lid 3 can (both no overlap by docking Part) or (both the have lamination portion) mode that is interlocked coordinate on pedestal 1.

Preferably, in the present embodiment, the lateral surface of at least two opposing sidewalls 11 of pedestal 1 is provided with the step 15 of indent, Side plate 32 is fastened on side wall 11 and is bonded on step 15.The setting of side wall 11 top bar 15, coordinates the interior of lid 3 side plate 32 In week, form fastening structure between the two, the inner circumferential of side plate 32 can be coupled on step 15 outside side wall 11, realize fastening.

As shown in Figure 1,3, side wall 11 lateral surface of side plate 32 and pedestal 1 is respectively equipped with the first holding section 41 and the second card Conjunction portion 42, side plate 32 is matched with the second holding section 42 by the first holding section 41 and is fastened on side wall 11.The setting of holding section Put, realize lid 3 and be fixed on pedestal 1, both do not depart from easily.

In first holding section 41 and the second holding section 42, one of is recessed bayonet socket, and another is to match with bayonet socket The fixture block of the projection closed；Or, the first holding section 41 and the second holding section 42 are the barb of relative engagement.

In other embodiments, lid 3 can be tabular cover plate, and the side wall 11 (as shown in Figure 1) of pedestal 1 is provided with to lid The junction surface that 3 directions extend, and junction is outside the first end 21 of stitch 2, lid 3 covers on junction surface.Plate-like cover The lid 3 of plate can be fixed on pedestal 1 by the setting of holding section further.

The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every The equivalent structure made using this utility model description and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in Other related technical fields, are all included in the same manner in scope of patent protection of the present utility model.

Claims

1. a kind of SMD transformator is it is characterised in that include the pedestal of the hollow of open-top（1）, be plugged in described pedestal （1）Two lateral walls（11）On several stitch（2）；Described stitch（2）First end（21）Stretch out described side wall（11）Top Face, relative the second end（22）Stretch out described pedestal（1）Bottom surface（12）；Described second end（22）Along described bottom surface（12）To Adjacent described pedestal（1）Side（13）Bending, and it is connected to described side（13）On.

2. SMD transformator according to claim 1 is it is characterised in that described pedestal（1）Side（13）Corresponding institute State stitch（2）The second end（22）It is provided with the auxiliary section of indent（131）, described stitch（2）The second end（22）Join positioned at described Conjunction portion（131）Interior；

Described stitch（2）Second end（22）End face towards described pedestal（1）Top.

3. SMD transformator according to claim 1 is it is characterised in that described side wall（11）Inside it is provided with and run through its top surface With described pedestal（1）The slot of bottom surface（14）, described stitch（2）It is contained in described slot（14）Interior.

4. the SMD transformator according to any one of claim 1-3 is it is characterised in that described SMD transformator also wraps Include and be arranged on described pedestal（1）Interior solenoid；Described solenoid is wrapped in described stitch by its wire（2）First end （21）Above with described stitch（2）Electrical connection.

5. the SMD transformator according to any one of claim 1-3 is it is characterised in that described SMD transformator also wraps Include cooperation in described pedestal（1）Lid in open top（3）.

6. SMD transformator according to claim 5 is it is characterised in that described lid（3）Including cover plate（31）, around Described cover plate（31）Periphery be connected to described cover plate（31）On side plate（32）；Described lid（3）By described side plate（32） With described pedestal（1）Side wall（11）Coordinate and cover in described pedestal（1）On.

7. SMD transformator according to claim 6 is it is characterised in that described pedestal（1）At least two opposite sides Wall（11）Lateral surface be provided with the step of indent（15）, described side plate（32）It is fastened on described side wall（11）Go up and be bonded on described Step（15）On.

8. SMD transformator according to claim 7 is it is characterised in that described side plate（32）With described pedestal（1）'s Side wall（11）First holding section is respectively equipped with lateral surface（41）With the second holding section（2）, described side plate（32）By described One holding section（41）With described second holding section（42）Match and be fastened on described side wall（11）On.

9. SMD transformator according to claim 8 is it is characterised in that described first holding section（41）With described second Holding section（42）In, one of is recessed bayonet socket, and another is the fixture block of the projection matching with bayonet socket；Or, described First holding section（41）With described second holding section（42）Barb for relative engagement.

10. SMD transformator according to claim 5 is it is characterised in that described lid（3）For tabular cover plate, described Pedestal（1）Side wall（11）It is provided with to described lid（3）The junction surface that direction extends, and described junction is in described stitch （2）First end（21）Outside, described lid（3）Cover on described junction surface.